Improvement in machinery for trimming and burnishing the heels of boots angshoes



2 Smets-Sheet 1.1

\ A. E. STIROKLER. MACHINERY FOR TRIMMING AND BURNISHING TI-IE HEELS OF BOOTS AND SHOES..

/ N- PETERS. PHOTO-LITHOGRAPHER, WASHINGTON. D C4 y y ZYSheets-Svheet. A.E.sT1Rc:KLER.'- MACHINERY FOR TRIMMING AND BURNISHING THE HEELS l OF BOOTS AND SHOES.

No, 194,115, Patented A.ug.14,1877.

N-PETERS, PNDTO-LITHOGRAFHER, WASHINGTON. n C.

ALBERT E. sT'iEokLEE, 0E WORCESTER,MASSACHUSETTS..

IMPROVEMENT IN MACHINERY Fon `TNIMMING AND BuNNIsIIING THE IIEIsLs oF. B ooTs ANDsIIoEs.

Specification forming part of Letters Patent No. 194, [15, dated August 14, 17877; application filed May 7, 1877. V-

To all whom t may concern:

` Be it known that I, AL ERT E. STIRCKLER, of the city and county of Worcester, and State of Massachusetts, have invented Acertain new and useful Improvements in Machines for Trimming land Burnishing the Heels of Boots and Shoes; and l declare the following to be a description ofmy said invention sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, `which form a part of this specication, and in which- Figure 1 represents a side view of a heel trimming andburnishing machine embracing my invention. Fig. 2 is a plan view, showing a central section of the shaft and burnisherhead. Fig. 3 is a front view of the upper portions of the machine. y Fig. 4 is a frontV view, with the boot supporting-'plate removed, and showing a transverse section of the burnisher tool or head. Fig. 5 is a vertical section of the boot-support, showing a rear view of the jack devices. Figs. 6 and 7 show the details of construction of the pivot-studand patternplate. Figs. 8, 9, and 10 show details'of lconstruction of the trimming cutter head, and Fig. 11 shows a central section of a cutterhead of modied construction.

The nature of my invention consists in the employment and combination, in a boot and shoe trimming and burnishing machine, o f mechanism organized and operating-substantially as hereinafter fully described, the subj ectmatter claimed being hereinafter deiinitely specified.

In the drawings, A denotes the mainframe, I of suitable form and material, for supporting the working mechanism. B indicates the shaft for carrying the trimming or burnishing tools, I

and C the plate or jack whereon the boot or shoe is held while being operated upon.

, The shaft B, which I- form hollow, is sup-` ported to turn in a horizontal position in bearings aal at the upper portion of the frame A,

and is provided centrally with a driving-pulley, Bl, and at its frontend with suitable screwthreads,` onto which the burnisherl) or trimming-tool E can be interchangeably secured, either' tool being used accordingly as the op eration of trimming or of burnishing is to be done. The drawings show the burn'ishing-tool in position on the shaft B; but it will be un'- derstood that the cutter-head or trimming-tool occupies alike position, and that the mechanism operates in like manner, whether trim- Y ming or burnishing, the change of -headbe'- ing all that is necessary to 'convert' the machine from one operation to'the other. The shaft B is arranged to reciprocate longitudinally through the bearings a. a1, to move the tool up toand away from its working 'position over the boot-heel'(see dotted lines, Fig. 1,) and to its'rear end is connected, by a suitable fork, f, and collar b, a treadle device or foot-lever, F, for imparting thereto aforward reciprocative movement, while a spring, B2,`is arranged (in the present instance between the pulley end and bearing al) for forcing bac-k the shaft B when the treadle`pressure 'is relieved. v l i Y A forked'or slotted arm, F1, from the frame A, is arranged in connection with :lever F, which is provided with a thumb-screw, F2; whereby it can be clampedtoV said arm F1 for retaining the parts at any iixedposition. An adjustable stop or guard, F3, is also provided,v which can be placed to prevent` `movement-0f the `parts beyond a given position,if desired, The trimming cutter-head is made as shown in Figs. 8, 9, 10, and 11, which illustrate lan improved form of cutter-head, with welt-trimmer and guard-plate combined therewith.

The edgetrimmer is made with cuttingblades-or burr-surface El' around theperiphery, andwith a depression or groove, e, across its outer end, within which I arrange a double welt-trimming blade, E2, which litsl into the groove e in the manner shown, While `outside thereof, and covering the end of the head, is a disk or guard-plate, E3, the blade and disk being both centrally secured by the screw or bolt E4.

The blade E2 and plate E3 may be screwed to the head direct, or to a sliding stud, E5, Iitted vcentrally in the end of the head E, as in Fig. l1, said stud E5 being pressed 'back by a spring, E6, so that while-the welt-cutter and guard-plate are held centrally withtlie head E, and caused toirevolve about-the same axis therewith, they'are allowed slight independent movement in a `direction parallell with the knobs or protuberances on its surface.

axisby the longitudinal movement of the stud against the spring, the blade E2 rising from the bottom of the groove e, but being conned by the sides thereof, so as to revolve with the head E.

Openings are formed in -the disk E3 to permit the escape of shavings from the vvblades E2.

, The edge-cutters E1 may be formed by setting suitable blades into the head, in lieu of making it as a burr.

The cutting edges or ends of the welt-trimming blades are canted to give the proper bevel at the upper line of the heels, and, being secured to work around the same axis as the edging-blades, produce an even'bevel or (bead-line, corresponding with the cut of the edge-surface.

The cutters E1 E2 can, if desired, be used 'without the guard-plate E3; but I prefer the construction shown.

The burnisher-'tool'D, I make hollow, as shown, with a series of perforations or openings, d, through its'shell. The working-face may be formed smooth, or with grooves or corrugations, or with small slightly-rounded The general contour of the working-face or developed surface of rotation may bea curve corresponding to the curve worked by the trimming-cutters E1, so that the burnisher will act upon the full width of the heel-edge H at once. 1-

Within the hollow interior of the head D, I arrange a gas-burner, I, the amefrom which keeps the burnisher-tool heated to the proper temperature. Gras is supplied to the burner I through the pipe If, arranged through the hollow revolving shaft B, as shown, the outer end of said pipe I being properly supported, and connected with the supply -main by a iexible tube orotherwise. The gas is lighted .and the smokevdischarged through the-openings d, and the ame is supplied with oxygen by the air passing through the hollow of shaft B. When trimming, the pipe I may be dawn back in the shaft and the gas shut o The front shaft-bearing a1 is made with an outer and inner shell, forming a reservoir, a2, for containing water to cool thebearing from the effect of the heated head D and gas-flame I. Pipes :v as are connected at either side to fpermit a constant flow of cold water through t the bearing-box, if desired.

Theboot-supporting plate G is formed double, or with front and back parts, as shown,

. one part ,serving as a bearing-surface, while 'the other'or front part serves to support the jacking devices. The two parts are permanently connected by stud-bolts or otherwise,

' and act together as a single piece.kl Said plate C is slotted at the back, and is adjustably piv- 4 oted to a sliding carrier, G, which works on or between suitable guideways Al at the front of the main frame A, preferably below, and at right angles to the shaft B, toward and from which the carrier G reciprocates, the pivotcenter moving in a line radial with the axis of the shaft B.

The carrier G and parts connected therewith are counterbalanced by a suitable weight, K, arranged in the present instance within the hollow standard of frame A, and connected to the carrier-slide by cord orchain 1c passing over pulleys 1c, as indicated. V

The pivot or pintle bolt L, which I arrange eccentrically with the heel-seat c, or below the center of the position occupied by the bootheel H against th'e plate C, passes through the upper part of' the carrier G in a direction parallel with the axis of the tool-shaft B, and its front end is secured in the slot of plate C by a nut, L, which may be loosened, and the adjustmentof the parts effected. The bolt L is squared into the slot, so as to move with the plate U, which latter is arranged to partially revolve or oscillate around the pivot-axis Lin a plane perpendicular to the'axis of shaftB for bringing all parts of the heeledge into contact with the tool.

To the rear end of the pivot-stud L is scoured an adjustable pattern-plate, M, the ontline of which corresponds to the desired form for the finished heel. The pattern-plate M, which moves with the boot-supporting plate C, works against a stud or bearing-piece, N, that projects from the front of the supportingframe below the shaft B, with its contact-surface in line, or nearly so, with the workingface of the trimming-tool. The cam-surface of the patternplate M bears against the stud N as the boot-supporting mechanism is swung around, and the carrier Gr moves up and down as the grade of the cam-surface of' plate M changes, thus directing or governing the action of the trimming mechanism on the heel.l

The stud N may be made as a small pin and screwed into the face of the fram'e or bearing a1, orbe formed on a suitable hanger or lug, and be bolted .to the frame. Its bearing surface should be cylindrical, or as a small roll, so as to offer the least resistance to the free action of the camplatc M. Separate holes or slots may be formed for the screw or bolt, so that stud N can he adjusted to accommodate diiferent sizes of patterns or trimming-tools.

Projections mmare formed at the ends of the pattern-cam, which prevent the sides of plate C from coming in contact with the revolving tool. I

rlhe boot or shoe, when to be operated upon, is placed against the face of plate C, in the position indicated in Fig. l, 'the heel and sole resting against said plate, with the heel-edge projecting beyond the upper extremity of heel-seat c, in which position it is firmly clamped by the dog P and yoke E. A guideclam'p, S, is also provided, for embracingY the toe of the boot and retaining it in the proper relative position laterally.

The yoke R, which embraces and centers the boot-heel in the manner indicated, liasits lower ends attached to plate C by bars or brackets R1, in such 'mannerithat while'theyoke Ri is held down it' `can vhe readily moved in or'- out to adjust its'inner edge to the upper, line 1 of heel, the yoke being free toV be moved. at; will before the dogP is jacked-up. Y Said yoke Bis provided with a rim or iiange, R2, along;

its inner edge, which serves as aguard for the uppers, and as a stop or guide against; which to run the finishing-tool.

In the present instance the ends of the yokeB are held in grooves in the brackets B1; but, if preferred, the brackets may be made to pass through the ends t of the yoke, or, again, the ends of yoke R may he fixed to the plate C, and the rimange R2 be made to adjust, in which latter case the rim R2 would require to be made separate from the body of the yoke It, and connected therewith by a slid e-rod or slotted eyepieces and set-screws, so as to be movable inward and outward on the yoke, in lieu of sliding the entire yoke on its brackets R1, as in the present instance. Said yoke may also be hinged across its top, and arranged to contract and expand to accommodate all sizes of boots.

The dog P works in a longitudinal slot in plate C, and is moved up and down by the jack-lever P', arranged as shown in Fig. 5, and provided with ratchet O and spring-pawl 0' for locking it in position. The dog P presses up against the square part of the heel H in opposition to the yoke R, thus clamping the boot between them.

The upper surface of the dog P and under side of the yoke R are preferably lined with elastic pads r r, as indicated, and small points or projections u are provided on the face of dog P, which enter the leather of the heel, and prevent the boot from being forced away from the heel-seat c by the strain of the tool.

The toe-guide S is made with inclined side flanges for embracing the sides of the boottce, as shown. It is arranged to slide up and down on the plate C, to which it is held by a stud, c, that passes through the slot s, and is provided with a friction-spring, t, and Washer, .which bears on the wedge-shaped or inclined projection V on the back of the plate C, and thus retains said guide at any adjusted position, while permitting of its being readily moved up or down by the hand.

T indicates a crank or handle, to facilitate oscillation of the plate O and parts connected therewith.

When placing the boot or shoe in position the heel is set against the seat C and up to the yoke R. The guide S is then moved up until it binds on the sides of the toe. This centers the boot, whether' a right or left, and brings the heel into proper position for trimming. The jack-lever P' is then set down, pressing up the dog, which locks the heel H in place. By thus centering and holding the boots all the heels are trimmed uniformly,

` and to stand square and straight as regards a line drawn through the center ofthe heel and toe.

What I` claim as my i'nventiom'and ydesire to secure by Letters Patent, is

l. The combination, in a boot and shoe trimming' and burnishing machine, of the revolving tool-shaft or spindle B, having a longitudinarlA reciprocative movement through its hearings c a1, the boot-supporting plate C, arrangedto oscillate in a iXed planeperpendicu- J lar to the axis of said shaft B,\and adjustably pivoted, by stud L, to the carrier G, working in guides A' on the frame A, substantially as and for the purposes set forth.

2. In combination, substantially as described, the revolving toolshaft B, edge-finishing tool E or D, oscillating boot-supporting plate C, provided with jacking mechanism, pivot-stud L, arranged below the heel-seat c, and fitted to turn with plate C, sliding pivotcarrier G, adjustable pattern-plate M, and

guide stud or bearing N, for the purposesset forth.

3. The pattern-plate M, formed with projections m m at its ends, adjustably attached to the pivot-stud L, and arranged to work against a stud or bearing-piece, N, in line with the working-face of the trimming-tool, substantially as and for the purposes described.

4. The combination, in a heel trimming and burnishing machine, of the reciprocating toolshaft B, rotating in bearings a. al, collar b, treadle-lever F, return-spring B2, arm F1, check-piece F3, and thumb-screw F2, as and for the purposes set forth.

5. The burnishingtool D for ed ge-inishing machines, formed with a hollow shank, and provided with perforations d, as and for the purpose set forth.

6. In combination, substantially as set forth, the hollow revolving shaft B, hollow perforated burn'ishing tool D, gas-pipe I', and burner I at the interior of the revolving head, for the purposes stated.

7. The cutter-tool for boot and shoe trimming machines, when constructed, as herein shown and described, with edge-trimming blades E1, welt-trimmin g blades E2, perforated guardplate E3, longitudinally-movable stud E5, and spring E6, all centrally secured, to revolve about the same axis, as set forth.

8. The combination, with supporting-plate C, of the yoke B, brackets B1, sliding dog P, and jacking-lever P', arranged and operating substantially as and for the purposes set forth.

9. The combination, with the boot-supporting plate C and edge-iinishing tool E or D, of the adjustable yoke R, provided with guardaiige R2, for protecting the upper and guiding the tool, substantially as set forth.

l0. In combination with the boot-support ing plate C and adjustable yoke R, for embracing and centering the boot-heel, the toeguide s, for embracing the boot-toe, substantially as and for the purpose set forth.

l1. The combination, substantially as shown and described, of the plate C, having slot s,

the toe-guide S, stud fv, friction-spring and Washer t, and inclined projections V, for the purpose stated.

Y12. The combination, substantially as set forth, of the boot-supporting plate C c, heelcentering yoke R, sliding dog l?, provided with points or projections u, and elastic pad r, jacking-lever P', and ratchet device o o', for the' purposes described.

13. .In a machine for finishing heel-edges, the combination,with the revolving shaft B, heated burnisher D, and heating-burner I, of the supporting-bearing a1, with Water-reservoir a?, substantially as shown and described.

- ALBERT E. STIRCKLER.

Witnesses CEAS. H. BURLEIGH, GEO. M. REED. 

